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BS EN ISO 9455-6:2022 – TC 2023

$186.33

Tracked Changes. Soft soldering fluxes. Test methods – Determination and detection of halide (excluding fluoride) content

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BSI 2023 54
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This document specifies three quantitative methods for the determination of the ionic halide (excluding fluoride) content of soldering fluxes. Halides are calculated as chlorides. A useful qualitative test method for the detection of ionic halides is also described. Method A is a potentiometric titration method for the determination of halide (excluding fluoride) content and is applicable to flux classes 1 and 2, defined in ISO 9454-1. This method, which is considered the reference method for these fluxes, is suitable for halide contents generally within the range of 0,05 % mass fraction to 2 % mass fraction in the non-volatile matter of the flux. Method B is a titration method for the determination of the total halide (excluding fluoride) content of water-soluble fluxes. It is applicable to flux classes 2122 to 2124, 3112 to 3114 and 3212 to 3214, as defined in ISO 9454-1. Method C is a titration method for the determination of the halide (excluding fluoride) content of water-soluble fluxes containing phosphates and is applicable to flux class 331, as defined in ISO 9454-1. Method D is a qualitative test, using silver chromate test paper, for the presence of ionic halides. The technique can be used for all classes of flux.

PDF Catalog

PDF Pages PDF Title
1 30468363
31 A-30447671
32 undefined
34 European foreword
Endorsement notice
36 Foreword
37 1 ​Scope
2 ​Normative references
3 ​Terms and definitions
4 ​Method A: Potentiometric method (Reference method)
4.1 ​Principle
38 4.2 ​Reagents
4.3 ​Apparatus
4.4 ​Procedure
39 4.5 ​Calculation of results
5 ​Method B: Titration method for halide (excluding fluoride) content of water-soluble fluxes
5.1 ​Principle
40 5.2 ​Reagents
5.3 ​Apparatus
5.4 ​Procedure
41 5.5 ​Standardization of the ammonium thiocyanate solution (5.2.2)
5.6 ​Calculation of results
6 ​Method C: Titration method for the determination of halide (excluding fluoride) content of water-soluble fluxes containing phosphates
6.1 ​Principle
42 6.2 ​Reagents
6.3 ​Apparatus
6.4 ​Procedure
43 6.5 ​Standardization of the ammonium thiocyanate solution (6.2.2)
6.6 ​Calculation of results
7 ​Method D: Qualitative test for the presence of ionic halides in flux
7.1 ​Principle
7.2 ​Reagents
44 7.3 ​Apparatus
7.4 ​Procedure
7.4.1 ​Preparation of flux test solution
45 7.4.2 ​Test procedure
8 ​Precision
8.1 ​General
46 8.2 ​Method A
8.3 ​Method B
8.4 ​Method C
9 ​Test report
48 Annex A (normative) Method for standardizing the silver nitrate solution
51 Bibliography
BS EN ISO 9455-6:2022 - TC 2023
$186.33